from math import gcd

def lcm(a, b):
    return a * b // gcd(a, b)

N, K = map(int, input().split())
A = list(map(int, input().split()))
ans = 1
for i in range(N):
    g = gcd(K, A[i])
    ans = lcm(g, ans)
    
print("Yes") if ans == K else print("No")